class People {
	double getArera(double x, int y) {
		return x * y;
	}

	int getArea(int x, double y) {
		return (int) (x * y);
	}

	double getArea(float x,float y,float z){
		return (x*x+y*y+z*z)*2.0;
	}
}

public class zy02 {

	public static void main(String[] args){
		People zhang=new People();
		System.out.println(zhang.getArea(10,3.88));
		System.out.println(zhang.getArea(10,8));
		System.out.println(zhang.getArea(3.0f,5.0f,4.0f));
	}
}
